Southwest Airlines has added a new daily nonstop destination at Pittsburgh International Airport (PIT). Beginning Sunday, September 29, travelers will be able to fly nonstop from Pittsburgh to Nashville International Airport (BNA) in Tennessee. Flights can be booked beginning today at southwest.com.

Puerto Vallarta is a mystic city that harbors tradition in its plazas, in its streets, in its people - a city that expresses the color of its culture and natural beauty at every turn. Located on the Pacific Coast of Mexico, where Jalisco and Nayarit meet, Puerto Vallarta lays in the heart of Banderas Bay and offers the best of two worlds: tradition and vanguard, making Vallarta a window to the world.

* Sample fares are based on the travel dates April 17 to April 24 for roundtrip (RT). Fares include taxes and fees.

America's fourth-largest city is a cosmopolitan destination, filled with world-class dining, arts, hotels, shopping and nightlife. Take a stroll through the historic Heights, spend the day exploring the Museum District or head down to Space Center Houston. Later on, grab a bite in one of dozens of award-winning restaurants, or hang out with the cool kids on Washington Avenue. There's always something to do in this Southern hospitality meets urban chic city.

*Sample fares are based on the travel dates April 17, 2013 for one-way (OW) and April 17 to April 24, 2013 for roundtrip (RT). Fares include taxes and fees.

Fast break! Time to score big savings on your next trip. Travelling is encouraged here; the only way you'll foul out is by missing these great deals. So pick your preferred travel dates, rally your teammates, and book your next trip today. Beat the buzzer and book by Thursday, March 21 for travel March 29 - June 8, 2013. 10-day advance purchase required. Displayed prices include all government taxes and fees.